Bench-stop



(No Model.)

P. H. WHITNEY.

BENCH STOP.

l Patented Nov. 3., 1885.

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UNITED STATES PATENT OFFICE.

BENCH-STOP.

SPECIFICATION forming part of Letters Patent No, 329,795, dated November 3, 1885.

Application filed May 5,1885. Serial No. 164,439. (No model.)

To all 2071,0711 it may concern.-

Be it known that I, FRANK H. WHITNEY, a citizen of the United States, residing at Friendship, in the county of Knox and State of Maine, have invented certain new and useful Improvements in Bench-Stops, of which the following is a specification, reference being had to the accompanying drawings.

This invention has relation to benclrstops, my object being to provide a stop which shall be so constructed as to be perfectly rigid, and yet at the same time be capable of adjustment for holding in place work of varied thicknesses; and the invention consists in certain novel features of construction hereinafter specified, and particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a plan view of my stop; Fig. 2, a side elevation; Fig. 3, a central longitudinal section, and Fig. 4 a detail in perspective hereinafter re ferred to.

Like letters indicate like parts in all the figures.

A represents a bench; A, a cylindrical aperture therein, into which a solid and, preferably, cylindrical metal plug, B, is tightly driven. Set into the upper end of the plug, flush with the surface thereof, is a spring tongue or plate, 0, which is secured with a recess, B, by means of a screw, 0. At the other end of the tongue or plate 0 is formed a head, 0, the end of which is provided with teeth or serrations 0 From the aperture A, and extending parallel to the tongue or plate 0, is a recess, A which terminates in an aperture, A passing entirely through the bench. Upon the under side of the tongue or plate 0 is secured, by rivets or otherwise, an arm, D, which is bent, as at D, and provided with a bifurcation, D", all as clearly shown in Fig. 4. The bench or table A is recessed at both sides of the aperture A to form shoulders A, within which is a plate, E, set in flush therewith, and secured thereto by screws E. The plate E is provided at its center with a screwthreaded aperture, E through which is adapted to pass a thumb'screw, F, near the top of which is formed an annular groove, F, which forms a bearing for and is embraced by the bifurcations D of the arm or plate D.

This being the construction, the operation is as follows: By means of the thumb-screw F the plate 0, by reason of its connection with the arm D, which has a bearing in the annular groove F of said screw, will be elevated or lowered, and remain in that position when thus adjusted, thus presenting the teeth 0 at the desired height for different kinds of work, and that the plate can, by reason of the recess A be drawn down flush with the upper surface of the bench. Furthermore, that all dust, dirt, and shavings that drop into the aperture A will fall through the same to the floor, as the plate E does not close the aperture entirely, but is merely wide enough to give the requisite strength. By the use of the solid plug B, which is also of metal, and which has a driving fit with the bench, and by reason of the metallic spring-plate G being seated within a recess in said plug, I secure a solid bearing or stop having a large bearing'surface, and one which will not weaken or become loose by frequent or hard use. By driving the plug B upward and turning up the screw F the entire stop can be adj usted for very thick wood.

It is very evident that minor details of construction may be changed, and I do not limit my invention to the exact construction, but reserve my right to make such alterations as may suggest themselves to persons skilled in the art to which my invention appertains.

Having described myinvention and its operation, what I claim is- 1. In a benchstop, the combination of a plug for insertion into a base or bench-top, a metallic plate secured to the plug, and any well-known devices arranged near the free end of the plate for raising and lowering the free end of said plate, substantially as specified.

2. In a bench-stop, and in combination with a bench provided with apertures, a plug adapted to fit one of said apertures, a spring-plate secured to said plug, a bifurcated arm secured tothe under side of the free end of said plate, and raising and lowering devices connected with said arm and with the bench, substantially as specified.

3. A bench-stop consisting of a plug, a spring-plate secured to the same, a bifurcated arm secured to the free end of said spring- ICO plate, and a thumb-screw passing upwardly recess A and apertures A A with the plug r 5 B, fitted in recess A, and having recess B, spring-plate O, seated in said recess B, and secured therein by the screw 0, arm D, having the bifurcations D thumb 1 screw F, having the annular groove F, embraced by said bifurcations, and plate E, substantially as shown and described.

, In testimony whereof I affix my signature in presence of two witnesses.

FRANK H. WHITNEY.

Witnesses:

D. W. POTTER, EVERETT FARRINGTON. 

